Avoid bundling duplicate libmathcat_py.pyd

[RyanMcCleary]

Link to issue number:

Closes #20046

Summary of the issue:

libmathcat_py.pyd is created both in the NVDA installation directory and in include\nvda-mathcat\assets.

Description of user facing changes:

Reduces the size of the launcher by ~4 MB.

Description of developer facing changes:

None; libmathcat_py can still be imported the same way. The duplicate being removed was not imported or used by any other code.

Description of development approach:

Excludes importable files in the same way that is already used for synthDrivers on line 389 of setup.py.

Testing strategy:

Built and checked that libmathcat_py.pyd is no longer duplicated, and read math in Chrome as a smoke test.

Known issues with pull request:

None.

Code Review Checklist:

• Documentation:
  • Change log entry
  • User Documentation
  • Developer / Technical Documentation
  • Context sensitive help for GUI changes
• Testing:
  • Unit tests
  • System (end to end) tests
  • Manual testing
• UX of all users considered:
  • Speech
  • Braille
  • Low Vision
  • Different web browsers
  • Localization in other languages / culture than English
• API is compatible with existing add-ons.
• Security precautions taken.

[Copilot]

Pull request overview

Updates NVDA’s frozen-build packaging rules to avoid shipping an extra copy of libmathcat_py.pyd from the bundled MathCAT assets, reducing installer/launcher size while keeping libmathcat_py import behavior unchanged.

Changes:

• Exclude importable module suffixes (via importlib.machinery.all_suffixes()) when recursively collecting ../include/nvda-mathcat/assets data files, matching the existing approach already used for other bundled directories.

[seanbudd]

Thanks @RyanMcCleary